Door-operating mechanism.



No. 873,058. PATBNTED DEO. 1O, 1907.

R. F. LBBROOQ. DOOR OPERATING MBOHANISM.

APPLICATION FILED JANJ, 1907.

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UNITED sTATEs PATENT oEEioE.

RICHARD F. LE BROOQ, OF NEW YORK, N. Y., ASSGNOR OF ONE-HALF TO EDWIN J. SELLEY,

OF NEW YORK, N. Y.

DOOR-OPERATING- MECHANISM.

Specification of Letters Patent.

Patented Dec. 10, 1907.

To all 'whom it may concern:

Be it known that 1, RICHARD F. LE BRocQ, of the city, county, and State of New York, have invented a new and useful Improvement in Door-Operating Mechanism, of which the following is a full, clear, and exact description.

My invention relates to improvementsin operating mechanisms for sliding doors.

The object of my invention is to produce an extremely cheap and simple device which can be applied to any ordinary form of sliding door, and by which the door can be operated quickly, noiselessly, and easily, either to open it or close it.

The invention can be used to great advantage on elevator doors, and its ease of operation and extreme simplicity, make it well tted for this purpose, as it is positive in its operation, and is not likely to get out of order. The device can, however, be applied to any form of sliding door, and the operating mechanism can be hung from either above or below the door as desired. A tripping mechanism can also be used in connection with it, and the device embodying my invention made to close the door when the tripping mechanism is worked. A

So far as the invention is concerned, it can be made to operate either way, that is, to open or close the door, Without affecting the principle of the invention, asv the essential thing is to produce and apply a device which will operate to slide the door easily in any desired direction.' Vith these ends in view, my invention consists of certain features of construction and combinations of parts, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a side elevation of the device embodying my invention, showing the same applied to a door and hung from beneath the door and Fig. 2 is a view similar to Fig. 1, but shows the invention slightly modified and hung overhead.

The door 10 represents an ordinary sliding door which runs in suitable ways, and is su ported on an overhead track 11, but the track arrangement has nothing to do with the invention, as the door can be mounted in any of the usual devices to make it slide easily. It is provided with a link 12, which is pivoted to the door as shown at 13, preferably at a point near the front edge of the door, and this link is pivoted to a tilting lever 14, which as shown in Fig. 1, extends downward beneath the edge of the door, and preferably to a point a little back of the door, where it is pivoted as shown at 15, to the door frame or some suitable support. The

lever 14 has near its pivoted end a forwardly extending cam or foot16, in which is a cam slot 17, and in this cam slot runs a pin 18, which can of course be any usual antifriction roller if preferred, and the pin is secured to the end of the pivoted arm 19, which lies essentially parallel with the travel of the door, andis pivoted at one end as shown at 20, to the door frame or some adjacent suport. p The arm 19 is normally pressed downward by a spring 21, which is coiled around the pivot 2O of the arm, though obviously the spring can be arranged in any usual way, and any tension spring or weight substituted which will produce the required pressure on the arm 19. It will be seen that this downward pressure will cause the pin 18 to act on the cam 16 and swing forward the lever 14, so that the latter, pushing on the link 12, will close the door.

1t will be noticed that the link 12 and lewhen the ldoor is near the limit of its movement in one direction and causing it to be operated very easily.

In Fig. 2 I have shown an arrangement substantially like that described, but hung overhead, and necessarily modiiied to meet the changed condition. As here shown the parts 12 and 14 are as already described, but the arm 19EL is elongated, is pivoted above, as at 22, and has an extension behind its pivot which is weighted as shown at 23, so that normally the arm is tilted up. The forward end of the arm is provided with a drop handle 24, and by pulling down on this handle the pin 18 acts on the cam 16 as already described, except that in this case the ver 14 act as toggle levers, straightening out y pressure on the cam serves to open the door y instead of to close it, but the principle is exactly the same as shown in Fig. 1, and as already described.

Vhere it is desirable, the door can be pro-- ratus on the elevator car, if the door is used as an elevator door.

Having thus fully described rny invention, I claim as new and desire to secure by Letters Patent l. An apparatus of the kind described, comprising a sliding door, a tiltinglever pivoted near one edge of the door and having a slotted of-set near its pivoted end, a pivotal connection between the lever and the door, and an arm pivoted near the door at one end and at the other end havin a connection with the slotted off-set ofthe liever. 2. An apparatus of the kind described comprising a sliding door, a tilting lever pivoted near one edge ofthe door and provided with an oset, a link pivoted directly to the door and to the aforesaid lever so that the two act as toggle levers, and a swinging arm on the saine edge of the door as the pivot of the aforesaid lever held generally parallel with the door and having at its free end a sliding connection with the aforesaid oil-set of the lever.

RICHARD F. LE BROCQ. Vitnesses:

GEO. N. VERITZAN, R. H. MILLER. 

